ma s s a c it its e t t s



,l `jarring or wear,

road-rails, and for similar' purposes.

` f or` Vsocket`and aj locking-cap,

flbiace they eye .or socket, t1ockingpin,the cap having an elasticlining or pack'- ing `betweenrit and the washer, and is made of suchsliapelthat vwhenlpinnd to the ble for the nutto turn; thepinfheing maderound, with aihead or `an `eye toreinoie it-,and al part'ot' fit.corresponding to theeyeof bolts and nuts,

ated.

`tYMANtnnor Woncnsr nn,MAssAcnUsnrTs Leners Patent 110,112,574, datedMarch 14, 1871.

IMPRovEMENT iNwuT-LocKs.

` The Schedule referred to in these Letters `Patent: and making part ofthe same.

"I, l'i'MAN FA?, `of r the city `and county. of Worcester, State of`Massachusetts, have inventetl au lm" proved Nut-Loc@ of whiehthefollowing is a specification. l i 1 i A fMy inventiou-relatesltosecuring the nut-s of' bolts which are liable to becotneloose4 1andfunscrew by `Its object isto `make a secure, reliable lock, that shallAnot wear or jarloose or outof place.

washer with an eye lIts naturenconsists in; using a having` flanges toeml u with holes for ai peculiar washer it is impossithe washer cutawaytota; curve eccentric tothejbody of thepiu, thus i, "forming a lock bythe packing, when the pin is in one position, i `extracted or inserted.,

and when it is turlnedwhalfround it may be r @DescriptionoftlietDau-ing.

1 Figure 1 showsaportion of' railroadrail with two to which myinventionis applied.4

rlffignre 2 shows the washer, cap, `and pin separligure shows asectonof' the pin on a larger scale. y

more` especially thosejused on rail- General Bescript'ion.

`A is the washer, with its eye B.

O C are the nuts on the bolts') D. 1

E is the cap with'its elastiopacking F F, 'and its end fitting vagainstthe nuts when in place.

G is the pin, of which r -H is a cross-section, showing the part cutaway betweinluh` 1b.". v A

The washerbeing pnt on the bolts, and the nuts toward the'ey'e, the capis put on andthe pecking compressed so as to admit the, pih, whichisinserted thuslocking the pin in place, and from whence itucan only bewithdrawn by compressing the packing, either byturning the pinhalf roundto make the Vholes coincide, so that the pin can be withdrawn; thepacking being made su'iciently strong to hold the pin in place, so thatit cannot wear or jar loose, and the whole securely holds the nuts fromturning except when released.

I claim- `The eye-formed washer, in combination with the holding-cap,having an elastic packing between it and 1the `\vnsl1e1', and aneccentrie-loclzing pin, substantially as described.

LYMAN FAY.

Witnesses:

A. GREENE,

D. BROWN.

Screwedoultight, as'wanted, and left with a dat side and turned so thatthe' eye lfalls into the notch h h,

or some other means,

